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DNS Lookup

Check DNS records for any domain, including A, AAAA, MX, NS, TXT, CAA, CNAME and SOA records.

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Live public DNS • Copy records • No signup

Related checks: Compare nameservers with WHOIS registration data, run a full domain health report, or read our DNS & domain guides.

Record types included

One lookup checks the most common DNS records used for websites, email, security and domain routing.

A / AAAA Records

Find IPv4 and IPv6 addresses used by your website or services.

NS Records

Check which nameservers are authoritative for your domain.

MX Records

View mail servers responsible for receiving email.

TXT Records

Inspect verification, SPF and other text-based DNS records.

CAA Records

See which certificate authorities are allowed to issue SSL certificates.

CNAME Records

Check aliases pointing one hostname to another.

SOA Record

Review the primary DNS zone information for the domain.

Common DNS issues this tool can detect

Issues this lookup flags automatically based on returned DNS records.

  • Website No A or AAAA records found
  • DNS Missing nameservers
  • Email Missing MX records
  • Security CAA record not configured
  • Email SPF record not found in TXT records

For SPF or CAA checks, use the SPF Checker or CAA Record Checker.

How DNS lookup works

Run a live DNS query and review records in a clear table.

  1. Enter your domain

    We normalize the domain, strip URLs or paths, and confirm it is a valid hostname before querying DNS.

  2. Query DNS records

    The tool checks common DNS record types including A, AAAA, MX, NS, TXT, CAA, CNAME and SOA.

  3. Review results

    See records grouped by type, copy values, and review notices for missing or optional records.

Reading your results

NS records show delegation. Compare with WHOIS registration data unless you are mid-migration.

Found

The record type returned at least one value from public DNS.

Missing

No record returned for types like A, NS or MX that your domain may need.

Optional

CAA may be absent by design. AAAA or SOA can also be missing without breaking basic DNS.

Preparing lookup…

    Run focused checks for email, SSL, domain health and reputation.

    WHOIS Lookup

    Registration and expiry details.

    Domain Health Checker

    Complete domain analysis in one report.

    MX Lookup

    Find mail exchange records.

    SPF Checker

    Validate SPF records and syntax.

    SSL Checker

    Verify certificate validity and expiry.

    CAA Record Checker

    See which CAs may issue certificates.

    Need help fixing DNS records?

    Send us your domain report and we’ll review the issue.

    Get Help

    Frequently asked questions

    Everything you need to know about DNS lookups.

    Learn more: Understanding DNS · Our methodology

    A DNS lookup checks the DNS records for a domain, such as A, AAAA, MX, NS, TXT, CAA, CNAME and SOA records.
    A records point a domain to an IPv4 address, while AAAA records point a domain to an IPv6 address.
    MX records tell mail servers where to deliver email for your domain.
    TXT records can store verification records, SPF records and other domain-related information.
    No. CAA is optional, but it can help control which certificate authorities are allowed to issue SSL certificates for your domain.
    No. The DNS Lookup tool is free and does not require signup.